Excavating-bucket.



J. c. GRENSHAW.

EXGAVATING BUCKET.

APPLICATION FILED JUNE 19, 1909.

7 954,936. I Patented Apr. 12,1910.

5 SHEETS-SEES! 1.

jrn%% J. G. CRENSHAW. EXUAVATING BUCKET. APPLICATION FILED JUNE 19, 1909.

954,936. Patented Apr. 12, 1910.

J. G. GRENSHAW.

EXGAVATING BUCKET.

AYPLIGATION FILED JUNE 19, 1909.

Patented Apr. 12,1910.

5 SHEETS-SHEET 3.

Fun/bu wow J. G GRENSHAW.

EXCAVATING BUCKET.

APPLICATION FILED JUNE 19, 1909 Patented Apr. 12, 1910.

5 sums-sum 4.

0 G 0 O 0 O O O Mmmeoom J. G. GRENSHAW.

EXUAVATING BUCKET.

APPLICATION FILED JUNE 19, 1909.

Patented Apr. 12, 1910.

' 5 SHEETS-SHEET 5.

JOHN GRITY CRENSHAW, 0F RIVER'ION, ALABAMA.

nxciivATING-Biicimi.

Specification of Lettersl'atent.

Patented Apr. 12 1910.

Application filed June 19, 1909. Serial No. 503,210.

To all whom it may concern.

Be it known that I, JoHN Cnrrr Omansrniw, a citizen of the United States, residing at Riverton, in the county of Colbert and State of Alabama, have invented certain new and useful Improvements in Excavatin -Buckets, of which the following is a speci cation.

This invention relates to improvements in excavating buckets, and particularly to automatic dumping buckets, and has-for an object the arrangement of means by which the bucket may e dumped upon being elevated at anydesired time.

Another object of the invention is the provision of a housing and a plurality of levers coacting with each other, whereby the housin of the bucket may be drawn. along and fi ed, and then raised and dum ed atany desired place by the releasing o the drawing means.

A further object of the invention is the arrangement in an excavating bucket of a housing formed of a bottom and sides of a single sheet of material, a pivotally mounted back, and means for drawin the bucket along for filling the same, and means connected with the bucket and the drawing means adapted to raise the bucket and trans-v port thesaine to any desired place for p flattened out portions ,14 on each o -the runners 11 and 12-the 1 bottom ;2 is firmly reinforced-and held rigidly to its.

dumping.

Another object of the invention is the anrangeinent in an excavating bucket, ofa pluralit o-f-pivotally mounted levers, one of whic as adumping lever, and means connecting said levers and acting as means by which the bucket may be elevated and transported.

With these and other objects in view the.

invention. comprises certain novel constructions, combinations and arrangement of parts as willbe hereinafter more fullydescribed and claimed.

In theaccompanying-drawings: Figure 1 is aside elevation of an embodiment of. the

invention. Fig. 2 is a top lan view of the structure shown in Fig. 1. i 3 is a detail f 'a entary top-plan view 0 the draftin aiif ibading bail. Fi 4 is a longitudi'na vertical section throng the-structure shown in Fig. 1. Fig. 5 is adetail perspective view of a bit. Fig. 6 is a lanview of the blank 'ig. 7 is a plan view of 8 is av detail perspecon a reduced scale. the hoisting bail. Filg, tive view on a slight y of the runners. Fig. 9 is a side elevation of acts as a draft lever and the other for forming journal members for dumping reduced. scale of one ,1 v I p lever's 20-20. Each-of the dumping levers the complete bucket shown in a dumped position.

Referring to the drawing :by numerals, 1 indicates the housing or body,-coinposed of a bottom 2 and side members or plates 3 and a. In forming the body the same is prefer= ably stamped or cut out of a s' 1e piece of sheet metal, as shown in the blan in Fig. 6, and the sides bent upward as shown in Fig. 2. Therear end of bottom 2 is also bent upward on the arc of a circle for forming-part of the back. A pivotally mounted back 5 extends from the rear end of bottom 2 and reaches to a cross brace 7. By this means a complete back is rovided from the bottom 2 to the top of t e body. The pivotally mounted back 5 ismountcd upon a cross bar or bolt 8 and is designed to rest loosely against cross bars or bolts 9 and 10when the bucket has been filled. Cross bars .9. and 10, and also cross bar or bolt 8' pass through runners 11 and 12 each of which are flattened at 13 and 14. The flattened portions 13 are riveted to brace 7, while the flattened ortions 14 are riveted'to the bottom 2. Eac of the runners is formed with a notch 15 for iic commodat' bolt 8 and the lower end of 'ivotally mounted I back 5, and are also ormed with suitable apertures. for accommodating bolts 9 and 10. By providin the braced and work.

. Inorder that the front end of the bottom- 2 mayinot be worn away a bit 16 is riveted to the bottoni, and is formedwith its ('zuttii'ig or engaging surface .be'nt slightly below the bot-tonf2. This will efiectuallprotectthe' front end of bottom 2, and w 'eiiever a bit has been worn'so 'as-to ex'ose the end of bottom 2, a new' one-may e'easily substituted. v y

In connection with the sides 3 and 4 brace ,}7 .is riveted thereto for not only forming part of the back, but also for roperly spacmg the sides apart and hol ing the same correctly in position. A front spacin mem- 'ber 17 18 also rovided for rigidly racing the front end'oi the side lates. Bi idly secured to eac of the side plates .3 an, 4 arebrackets id 1 8; Bolts Iii-19 are gassed through 3 the uprights or brackets Sandthrough the side plates 3 and 4 20-20 is formed with a hooked shaped end 21-21 and with projections 22-22 for holdng the securin means for chains 23-23. The rear end levers -20 are adapted to engage the upper end of guidin braces 24-24 when the bucket is being umped, as clearly shown in Fig. '9. Associated with the dumping levers 20-20 are loading levers 25-25 which are pivotally mounted u on shafts 26-20 and passed through brac ets 27-27, and also through the side plates 3 and 4 respectively. The brackets 27-27 are provided with arms 28-28 which inclose the front ends of levers 20-20 for uiding the same, and also act as guides for t e rear ends 29-29 of levers 25-25. The rear ends 29-29 are formed preferably curved, and are provided with rollers 30-30 which engage the hooked ends 21-210f levers 20-20. .The loadin levers 25-25 are ri idly connected wit a loading or draft ball 31, which is more clearly shown in Fig. 3'. The loading or draft bail 31 is formed with bracin members 32 and 33 which are bolted to a. raft bar 34. The draft ba'r 34: is also secured to the bail 31 so that when a rope or cable as 35 is secured to the draft bar and ma be, ragged along for excavating.

en power has beenapplied to cable 35 and thebucket moved along over the ground for excavating and the housing 1 has-been filled, the matter placed therein will press against the pivot-ally mountedback 5 until the same moves from against stop 5 back againstthe bracing bolts or rods 8 and 9.

Secured to-each side of the bail- 31 is a bracket or strap 36 provided with a plurality' of apertures therein for accommodating. chains 37-37. By this arrangementthe point at which chains 37-37 may be applied may be varied as desired. Chains 37-37 and 23-23 are ivotally secured to a hoisting bail more c early shown in Fig. 7, by means of clevises 38-38" and 39-39. The clevises 38-38 and 39-39 are pivotally secured to blocks 40-40, which in turn are secured to a transverse bracing member 41, and a bracin and draft member 42. An D elevating dra t'member 43 is secured to the "transverse bracin member 42, and carries a p'votally mounted block 44 at its outer en to whichis secured .a link :45. Link 45 is pivotally mounted, and may freely move 3 in one plane, and block 44 is pivotally ,mounted and ma movein a transverse plane, so that a su stantiall universal joint is provided to which the li ting power may be applied; 1

D Inoperation when it is desired to fill the bucket and then dump the same at any desired point, power a is applied to cab e 35 and the bucket caused toengage the earth or other matter being excavated and is 5 moved until, ,the bucket has been filled, after ower is applied thereto the bucket :means connecting said hoistin which the drafting force is kept from operation, but cable 35 is not given any slack. Elevating power is then applied and the bucket is raised and transported to any desired place, the cable 35 being kept taut, thou h paid out as the bucket is moved to the esired place for dumping. After the bucket has reached the place for dumping the cable 35 is given" ample slack. This will cause the weight of the matter in the bucket to act on levers 20-20, and also upon chains 35-35. for drawing the Ibail 31 to the position shown in Fig. 9, and the levers 20-20 to the position shown Fig. 9. This of course will cause the open or front end of the bucket to point downward and permit the matter therein to be freely dumped. Also it will be observed that chains 37-37 will cause levers 25-25 to engage the upper surface of the vhooked members 21-21 for holding the rear end oflevers 20-20 in contact with the upper end ofbrackets 24 -24. This will positively prevent the bucket from assuming a horizontal position until either the lifting power has been re moved or until power has been applied to cable 35 for drawing the bucket forward.

' What I claim is: I

1. In an excavatin bucket,.a body, a pair of pivotally mounte levers connected with sai bucket on each sidethereof, a hoisting bail connected with each of said levers, a dumping lever pivotally connected with said bucket and loosely -contacting with said first mentioned levers, a draft bail con: nected with said dumpin levers, and means connecting said draft ball with said hoisting bail. 4 I

v 2. In an excavating bucket, a body, a plurality of means for bracing the body, a pivotally mounted hoisting lever arranged on each slde of the bucket, a hoisting bail,

bail with one end of each of said levers, umping levers adapted to en a e the opposite end of said levers, a dra t ail conne'ctedto said dumpm levers, and means connecting said draft bail with said hoisting bail.

3. In a device of the-class described, side walls and a bottom, a removable blade secured at the forward end ofthe'bottom between the sides, a curved rear wall hinged to the rear of the bottom, and a sto carried by the side wall positioned to unit the movement of the hinged wall.

4.:Ina device of the class described, side walls and a bottom a cutter carried at the forward end of the bottom, a'rear wall coinprism one ortionrigidly1 secured between the si' e w ls adjacent't eir upper edges, and a portion hinged to the rear of the botf tom, and a stop carried b a side wall adapt ed to limit the forwar movement of the hinged portion of the rear wall. 5. In a device: of the class described, a

side-walls of the bucket, levers pivoted upon 10 I one lever is extended it holds the other 1e ver extended, draft meens'epplied to the I first-mentioned lever "tionto hold such the trunnions and so proportioned that when lever extended, 7 and 1i tin means applied one lever is extended it retains the other 1e to the extremities of both avers 15 ver extended, and lifting means applied to 1 In testimon whereof I aflix my signature the extremities of the levers. in presence 0 .two' witnesses.

6. In a device of the class described a; I I I bucket body, pivot trunnions secured to the x ZJOHN GRITY GRENSHAW" Vitne'sses:

W. M. Booming Jr, J. S. SLOAN.

bucket body, pivot trunnions secured upon the sides of the body, fevers julcrumed upon the trunnions and so proportioned that when 

